MP Systems R Series - Hose Fitting Identification Guide

69 MPSYSTEMS-M-001/06
Determining Hose Fittings
JIC Fitting Identification
Fitting Size Inch
(mm)
Nominal Size
No. Thread Per
Inch
Male Thread OD
(Outer
Dimension)
Female thread ID
(Inner
Dimension)
-4 (6) 1/4" 20 11.0 mm 9.9 mm
-6 (9) 3/8” 18 14.1 mm 12.9 mm
-8 (12) 1/2" 16 18.9 mm 17.5 mm
-12 (19) 3/4" 12 26.9 mm 25.0 mm
JIS Fitting Identification
Fitting Size Inch
(mm)
Fitting Nominal
Size
No. Thread Per
Inch
Male Thread OD
(Outer
Dimension)
Female thread ID
(Inner
Dimension)
-4 (6) 1/4" 19 13.5 mm 11.7 mm
-6 (9) 3/8” 19 16.7 mm 15.2 mm
-8 (12) 1/2" 14 20.5 mm 18.9 mm
-12 (19) 3/4" 14 26.3 mm 24.4 mm
Komatsu Fitting Identification
Fitting Dash
Size
Fitting Nominal
Size
Metric Thread
Size
Male Thread OD
(Outer
Dimension)
Female thread ID
(Inner Dimension)
-4 1/4" M14 x 1.5 14 mm 12.5 mm
-6 3/8” M18 x 1.5 18 mm 16.5 mm
-8 1/2” M22 x 1.5 22 mm 20.5 mm
-12 3/4” M30 x 1.5 30 mm 28.5 mm
JIC fittings have 37° flare with straight thread.
JIS fittings have a 30° flare with BSP thread (British Standard Pipe Thread).
Komatsu fittings have 30° with metric thread, 19.6 threads per inch.